Post foaming cleaning compositions comprising isopentane

ABSTRACT

A post foaming liquid cleaning composition is sprayed onto a surface to be cleaned and then the composition foams while on the surface.

RELATED APPLICATION

This application is a continuation in part application of U.S. Ser. No.9/335,303 filed Jun. 17, 1999 now U.S. Pat. No. 6,004,920 which in turnis a continuation in part application of U.S. Ser. No. 9/289,462 filedApr. 9, 1999 now U.S. Pat. No. 5,962,396.

FIELD OF THE INVENTION

This invention relates to a post foaming cleaning composition which issprayed onto the surface to be cleaned and the composition then foams onthe surface being cleaned.

BACKGROUND OF THE INVENTION

The present invention relates to novel light duty liquid detergentcompositions with post foaming properties, containing at least onesurfactant, isopentane and water.

The prior art is replete with light duty liquid detergent compositionscontaining nonionic surfactants in combination with anionic and/orbetaine surfactants wherein the nonionic detergent is not the majoractive surfactant, as shown in U.S. Pat. No. 3,658,985 wherein ananionic based shampoo contains a minor amount of a fatty acidalkanolamide. U.S. Pat. No. 3,769,398 discloses a betaine-based shampoocontaining minor amounts of nonionic surfactants. This patent statesthat the low foaming properties of nonionic detergents renders its usein shampoo compositions non-preferred. U.S. Pat. No. 4,329,335 alsodiscloses a shampoo containing a betaine surfactant as the majoringredient and minor amounts of a nonionic surfactant and of a fattyacid mono- or di-ethanolamide. U.S. Pat. No. 4,259,204 discloses ashampoo comprising 0.8-20% by weight of an anionic phosphoric acid esterand one additional surfactant which may be either anionic, amphoteric,or nonionic. U.S. Pat. No. 4,329,334 discloses an anionic-amphotericbased shampoo containing a major amount of anionic surfactant and lesseramounts of a betaine and nonionic surfactants.

U.S. Pat. No. 3,935,129 discloses a liquid cleaning composition based onthe alkali metal silicate content and containing five basic ingredients,namely, urea, glycerin, triethanolamine, an anionic detergent and anonionic detergent. The silicate content determines the amount ofanionic and/or nonionic detergent in the liquid cleaning composition.However, the foaming property of these detergent compositions is notdiscussed therein.

U.S. Pat. No. 4,129,515 discloses a heavy duty liquid detergent forlaundering fabrics comprising a mixture of substantially equal amountsof anionic and nonionic surfactants, alkanolamines and magnesium salts,and, optionally, zwitterionic surfactants as suds modifiers.

U.S. Pat. No. 4,224,195 discloses an aqueous detergent composition forlaundering socks or stockings comprising a specific group of nonionicdetergents, namely, an ethylene oxide of a secondary alcohol, a specificgroup of anionic detergents, namely, a sulfuric ester salt of anethylene oxide adduct of a secondary alcohol, and an amphotericsurfactant which may be a betaine, wherein either the anionic ornonionic surfactant may be the major ingredient.

The prior art also discloses detergent compositions containing allnonionic surfactants as shown in U.S. Pat. Nos. 4,154,706 and 4,329,336wherein the shampoo compositions contain a plurality of particularnonionic surfactants in order to effect desirable foaming and detersiveproperties despite the fact that nonionic surfactants are usuallydeficient in such properties.

U.S. Pat. No. 4,013,787 discloses a piperazine based polymer inconditioning and shampoo compositions which may contain all nonionicsurfactant or all anionic surfactant.

U.S. Pat. No. 4,671,895 teaches a liquid detergent compositioncontaining an alcohol sulfate surfactant, a nonionic surfactant, aparaffin sulfonate surfactant, an alkyl ether sulfate surfactant andwater.

U.S. Pat. No. 4,450,091 discloses high viscosity shampoo compositionscontaining a blend of an amphoteric betaine surfactant, apolyoxybutylene polyoxyethylene nonionic detergent, an anionicsurfactant, a fatty acid alkanolamide and a polyoxyalkylene glycol fattyester. But, none of the exemplified compositions contains an activeingredient mixture wherein the nonionic detergent is present in majorproportion, probably due to the low foaming properties of thepolyoxybutylene polyoxyethylene nonionic detergent.

U.S. Pat. No. 4,595,526 describes a composition comprising a nonionicsurfactant, a betaine surfactant, an anionic surfactant and a C₁₂ -C₁₄fatty acid monoethanolamide foam stabilizer.

U.S. Pat. Nos. 4,675,422; 4,698,181; 4,724,174; 4,770,815 and 4,921,942disclose alkyl succinamates but the compositions are non related tolight duty liquid compositions.

However, none of these patents teach a composition which can be sprayedonto a surface, wherein the composition will then foam on the surfacebeing cleaned.

SUMMARY OF THE INVENTION

The present invention relates to the herein after described post foamingcompositions which are dispensed from a container as a spray onto asurface, wherein the post foaming composition contacts the surface as aliquid and begins to foam within a few seconds without the mechanicalaction or running water or squeezing a sponge.

The instant post foaming compositions are packaged in a pressurizedfluid dispenser such as illustrated in U.S. Pat. No. 4,964,540, which isincorporated by reference herein in its entirety. One pressurized fluiddispenser can be generally described as an expandable bag having agenerally cylindrical shaped outer wall, said bag having a closed endand an open end, said outer wall including a plurality of substantiallylongitudinal pleats, said pleats defining a plurality of peaks andvalleys; valve means coupled with said open end for selectivelyreleasing the contents of the bag; an expandable energy tubesubstantially surrounding said bag for maintaining pressure on the bagand its contents; a plurality of expandable longitudinal ribs disposedin said valleys of said pleats and at least partially filing saidvalleys, said longitudinal ribs controlling refolding of the pleats inthe bag as fluid is released from the bag.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a post foaming light duty liquidcleaning composition comprising approximately by weight:

(a) 8% to 39% of at least one sulfonate surfactant selected from thegroup consisting of sodium or magnesium salt of a linear C₈ -C₁₈ alkylbenzene sulfonate and sodium magnesium salt of a C₈ -C₁₈ paraffinsulfonate and mixtures thereof;

(b) 2% to 24% of at least one ethoxylated alkyl ether sulfate selectedfrom the group consisting of sodium ethoxylated C₈ -C₁₈ alkyl ethersulfate ammonium ethoxylated C₈ -C₁₈ alkyl ether sulfate and sodiumethoxylated C₈ -C₁₈ alkyl ether sulfate and mixtures thereof;

(c) 0 to 10% of a surfactant selected from the group consisting ofbetaine surfactants, sultaine surfactants and amine oxide surfactantsand mixtures thereof;

(d) 1% to 16% of an alkyl polyglucoside;

(e) 0 to 4% of a mono- or di-alkanol amide;

(f) 0 to 20%, more preferably 0.5% to 15% of an ethoxylated nonionicsurfactant;

(g) 0 to 0.6% of a fragrance;

(h) 7% to 14% of isopentane; and

(i) 60% to 80% of water.

The present invention also relates to a post foaming microemulsioncleaning surface composition which comprises approximately by weight:

(a) 2% to 12% of a sulfonate surfactant selected from the groupconsisting of a sodium or magnesium salt of a C₈ -C₁₈ linear alkylbenzene sulfonates and a sodium or magnesium salt of a C₈ -C₁₈ paraffinsulfonates and mixtures thereof;

(b) 0 to 8% of a magnesium, sodium or ammonium salt of an ethoxylated C₈-C₈ alkyl ether sulfate and mixtures thereof;

(c) 0 to 8% of a zwitterionic surfactant;

(d) 0 to 10% of a glycol ether cosurfactant;

(e) 0.4% to 8% of a perfume, essential oil or water insoluble saturatedor unsaturated organic compound having about 8 to about 24 carbon atoms,and mixtures thereof;

(f) 7% to 14% of isopentane; and

(g) 75% to 95% of water.

The present invention also relates to a post foaming microemulsioncleaning composition comprising approximately by weight:

(a) 0.2% to 10% of a sodium salt of a C₆ -C₁₀ alkyl sulfosuccinate;

(b) 10% to 16% of at least one nonionic surfactant containing ethoxylategroups;

(c) 1% to 15% of a glycol ether cosurfactant;

(d) 1% to 8% of a water insoluble saturated or unsaturated organiccompound having about 8 to about 24 carbon atoms and/or an essentialoil;

(e) 0 to 2% of a perfume;

(f) 7% to 14% of isopentane; and

(g) 70% to 90% of water.

The present invention also relates to a post foaming super wettingcleaning composition comprising approximately by weight:

(a) 1% to 8% of a nonionic surfactant containing ethoxylate groups;

(b) 0 to 4 wt. % of a perfume;

(c) 1% to 8% of a water insoluble saturated or unsaturated organiccompound having about 8 to about 24 carbon atoms and/or an essentialoil;

(d) 1% to 12% of an amphipile which is the condensation product of analkanol having about 4 to about 8 carbon atoms with about 2 to about 4moles of ethylene oxide;

(e) 7% to 14% of isopentane; and

(f) 75% to 95% of water.

The C₈₋₁₈ ethoxylated alkyl ether sulfate surfactants used in theinstant compositions have the structure:

    R-(OCHCH.sub.2).sub.n OSO.sub.3.sup.-M+

wherein n is about 1 to about 22 more preferably 1 to 3 and R is analkyl group having about 8 to about 18 carbon atoms, more preferably 12to 15 and natural cuts, for example, C₁₂₋₁₄ ; C₁₂₋₁₅ and M is anammonium cation or an alkali metal cation, most preferably sodium orammonium.

The ethoxylated alkyl ether sulfate may be made by sulfating thecondensation product of ethylene oxide and C₈₋₁₀ alkanol, andneutralizing the resultant product. The ethoxylated alkyl ether sulfatesdiffer from one another in the number of carbon atoms in the alcoholsand in the number of moles of ethylene oxide reacted with one mole ofsuch alcohol. Preferred ethoxylated alkyl ether polyethenoxy sulfatescontain 12 to 15 carbon atoms in the alcohols and in the alkyl groupsthereof, e.g., sodium myristyl (3 EO) sulfate.

Ethoxylated C₈₋₁₈ alkylphenyl ether sulfates containing from 2 to 6moles of ethylene oxide in the molecule are also suitable for use in theinvention compositions. These surfactants can be prepared by reacting analkyl phenol with 2 to 6 moles of ethylene oxide and sulfating andneutralizing the resultant ethoxylated alkylphenol.

The linear alkyl benzene sulfonate contains from 10 to 16 carbon atomsin the alkyl group are used in the instant compositions wherein thealkyl benzene sulfonates has a high content of 3- (or higher) phenylisomers and a correspondingly low content (well below 50%) of 2- (orlower) phenyl isomers, that is, wherein the benzene ring is preferablyattached in large part at the 3 or higher (for example, 4, 5, 6 or 7)position of the alkyl group and the content of the isomers in which thebenzene ring is attached in the 2 or 1 position.

Other suitable anionic surfactants are the olefin sulfonates, includinglong-chain alkene sulfonates, long-chain hydroxyalkane sulfonates ormixtures of alkene sulfonates and hydroxyalkane sulfonates. These olefinsulfonate detergents may be prepared in a known manner by the reactionof sulfur trioxide (SO₃) with long-chain olefins containing 8 to 25,preferably 12 to 21 carbon atoms and having the formula RCH═CHR₁ where Ris a higher alkyl group of 6 to 23 carbons and R₁ is an alkyl group of 1to 17 carbons or hydrogen to form a mixture of sultones and alkenesulfonic acids which is then treated to convert the sultones tosulfonates. Preferred olefin sulfonates contain from 14 to 16 carbonatoms in the R alkyl group and are obtained by sulfonating analpha-olefin.

Other examples of suitable anionic sulfonate surfactants are theparaffin sulfonates containing about 10 to 20, preferably about 13 to17, carbon atoms. Primary paraffin sulfonates are made by reactinglong-chain alpha olefins and bisulfites and paraffin sulfonates havingthe sulfonate group distributed along the paraffin chain are shown inU.S. Pat. Nos. 2,503,280; 2,507,088; 3,260,744; 3,372,188; and GermanPatent 735,096.

The alkyl polysaccharides surfactants, which are used in the instantcompositions have a hydrophobic group containing from about 8 to about20 carbon atoms, preferably from about 10 to about 16 carbon atoms, mostpreferably from about 12 to about 14 carbon atoms, and polysaccharidehydrophilic group containing from about 1.5 to about 10, preferably fromabout 1.5 to about 4, most preferably from about 1.6 to about 2.7saccharide units (e.g., galactoside, glucoside, fructoside, glucosyl,fructosyl; and/or galactosyl units). Mixtures of saccharide moieties maybe used in the alkyl polysaccharide surfactants. The number x indicatesthe number of saccharide units in a particular alkyl polysaccharidesurfactant. For a particular alkyl polysaccharide molecule x can onlyassume integral values. In any physical sample of alkyl polysaccharidesurfactants there will be in general molecules having different xvalues. The physical sample can be characterized by the average value ofx and this average value can assume non-integral values. In thisspecification the values of x are to be understood to be average values.The hydrophobic group (R) can be attached at the 2-, 3-, or 4-positionsrather than at the 1-position, (thus giving e.g. a glucosyl orgalactosyl as opposed to a glucoside or galactoside). However,attachment through the 1-position, i.e., glucosides, galactoside,fructosides, etc., is preferred. In the preferred product the additionalsaccharide units are predominately attached to the previous saccharideunit's 2-position. Attachment through the 3-, 4-, and 6-positions canalso occur. Optionally and less desirably there can be a polyalkoxidechain joining the hydrophobic moiety (R) and the polysaccharide chain.The preferred alkoxide moiety is ethoxide.

Typical hydrophobic groups include alkyl groups, either saturated orunsaturated, branched or unbranched containing from about 8 to about 20,preferably from about 10 to about 18 carbon atoms. Preferably, the alkylgroup is a straight chain saturated alkyl group. The alkyl group cancontain up to 3 hydroxy groups and/or the polyalkoxide chain can containup to about 30, preferably less than about 10, alkoxide moieties.

Suitable alkyl polysaccharides are decyl, dodecyl, tetradecyl,pentadecyl, hexadecyl, and octadecyl, di-, tri-, tetra-, penta-, andhexaglucosides, galactosides, lactosides, fructosides, fructosyls,lactosyls, glucosyls and/or galactosyls and mixtures thereof.

The alkyl monosaccharides are relatively less soluble in water than thehigher alkyl polysaccharides. When used in admixture with alkylpolysaccharides, the alkyl monosaccharides are solubilized to someextent. The use of alkyl monosaccharides in admixture with alkylpolysaccharides is a preferred mode of carrying out the invention.Suitable mixtures include coconut alkyl, di-, tri-, tetra-, andpentaglucosides and tallow alkyl tetra-, penta-, and hexaglucosides.

The preferred alkyl polysaccharides are alkyl polyglucosides having theformula

    RO(C.sub.n H.sub.2n O).sub.r (Z).sub.x

wherein Z is derived from glucose, R is a hydrophobic group selectedfrom the group consisting of alkyl, alkylphenyl, hydroxyalkylphenyl, andmixtures thereof in which said alkyl groups contain from about 10 toabout 18, preferably from about 12 to about 14 carbon atoms; n is 2 or 3preferably 2, r is from 0 to 10, preferably 0; and x is from 1.5 to 8,preferably from 1.5 to 4, most preferably from 1.6 to 2.7. To preparethese compounds a long chain alcohol (R₂ OH) can be reacted withglucose, in the presence of an acid catalyst to form the desiredglucoside. Alternatively the alkyl polyglucosides can be prepared by atwo step procedure in which a short chain alcohol (R₁ OH) can be reactedwith glucose, in the presence of an acid catalyst to form the desiredglucoside. Alternatively the alkyl polyglucosides can be prepared by atwo step procedure in which a short chain alcohol (C₁₋₆) is reacted withglucose or a polyglucoside (x=2 to 4) to yield a short chain alkylglucoside (x=1 to 4) which can in turn be reacted with a longer chainalcohol (R₂ OH) to displace the short chain alcohol and obtain thedesired alkyl polyglucoside. If this two step procedure is used, theshort chain alkylglucoside content of the final alkyl polyglucosidematerial should be less than 50%, preferably less than 10%, morepreferably less than about 5%, most preferably 0% of the alkylpolyglucoside.

The amount of unreacted alcohol (the free fatty alcohol content) in thedesired alkyl polysaccharide surfactant is preferably less than about2%, more preferably less than about 0.5% by weight of the total of thealkyl polysaccharide. For some uses it is desirable to have the alkylmonosaccharide content less than about 10%.

The used herein, "alkyl polysaccharide surfactant" is intended torepresent both the preferred glucose and galactose derived surfactantsand the less preferred alkyl polysaccharide surfactants. Throughout thisspecification, "alkyl polyglucoside" is used to include alkylpolyglycosides because the stereochemistry of the saccharide moiety ischanged during the preparation reaction.

An especially preferred APG glycoside surfactant is APG 625 glycosidemanufactured by the Henkel Corporation of Ambler, Pa. APG25 is anonionic alkyl polyglycoside characterized by the formula:

    C.sub.n H.sub.2n+1 O(C.sub.6 H.sub.10 O.sub.5).sub.x H

wherein n=10(2%); n=12 (65%); n=14 (21-28%); n=16 (4-8%) and n=18 (0.5%)and x (degree of polymerization)=1.6. APG 625 has: a pH of 6 to 10 (10%of APG 625 in distilled water); a specific gravity at 25° C. of 1.1g/ml; a density at 25° C. of 9.1 lbs/gallon; a calculated HLB of 12.1and a Brookfield viscosity at 35° C., 21 spindle, 5-10 RPM of 3,000 to7,000 cps.

The water soluble nonionic surfactants utilized in this invention arecommercially well known and include the primary aliphatic alcoholethoxylates, secondary aliphatic alcohol ethoxylates, alkylphenolethoxylates and ethylene-oxide-propylene oxide condensates on primaryalkanols, such a Plurafacs (BASF) and condensates of ethylene oxide withsorbitan fatty acid esters such as the Tweens (ICI). The nonionicsynthetic organic detergents generally are the condensation products ofan organic aliphatic or alkyl aromatic hydrophobic compound andhydrophilic ethylene oxide groups. Practically any hydrophobic compoundhaving a carboxy, hydroxy, amido, or amino group with a free hydrogenattached to the nitrogen can be condensed with ethylene oxide or withthe polyhydration product thereof, polyethylene glycol, to form awater-soluble nonionic detergent. Further, the length of thepolyethenoxy chain can be adjusted to achieve the desired balancebetween the hydrophobic and hydrophilic elements.

The nonionic surfactant class includes the condensation products of ahigher alcohol (e.g., an alkanol containing about 8 to 18 carbon atomsin a straight or branched chain configuration) condensed with about 5 to30 moles of ethylene oxide, for example, lauryl or myristyl alcoholcondensed with about 16 moles of ethylene oxide (EO), tridecanolcondensed with about 6 to moles of EO, myristyl alcohol condensed withabout 10 moles of EO per mole of myristyl alcohol, the condensationproduct of EO with a cut of coconut fatty alcohol containing a mixtureof fatty alcohols with alkyl chains varying from 10 to about 14 carbonatoms in length and wherein the condensate contains either about 6 molesof EO per mole of total alcohol or about 9 moles of EO per mole ofalcohol and tallow alcohol ethoxylates containing 6 EO to 11 EO per moleof alcohol.

A preferred group of the foregoing nonionic surfactants are the Neodolethoxylates (Shell Co.), which are higher aliphatic, primary alcoholcontaining about 9-15 carbon atoms, such as C₉ -C₁₁ alkanol condensedwith 8 moles of ethylene oxide (Neodol 91-8), C₁₂₋₁₃ alkanol condensedwith 6.5 moles ethylene oxide (Neodol 23-6.5), C₁₂₋₁₅ alkanol condensedwith 12 moles ethylene oxide (Neodol 25-12), C₁₄₋₁₅ alkanol condensedwith 13 moles ethylene oxide (Neodol 45-13), and the like. Suchethoxamers have an HLB (hydrophobic lipophilic balance) value of about8-15 and give good O/W emulsification, whereas ethoxamers with HLBvalues below 8 contain less than 5 ethyleneoxide groups and tend to bepoor emulsifiers and poor surfactants.

Additional satisfactory water soluble alcohol ethylene oxide condensatesare the condensation products of a secondary aliphatic alcoholcontaining 8 to 18 carbon atoms in a straight or branched chainconfiguration condensed with 5 to 30 moles of ethylene oxide. Examplesof commercially available nonionic detergents of the foregoing type areC₁₁ -C₁₅ secondary alkanol condensed with either 9 EO (Tergitol 15-S-9)or 12 EO (Tergitol 15-S-12) marketed by Union Carbide.

Other suitable nonionic surfactants include the polyethylene oxidecondensates of one mole of alkyl phenol containing from about 8 to 18carbon atoms in a straight- or branched chain alkyl group with about 5to 30 moles of ethylene oxide. Specific examples of alkyl phenolethoxylates include nonyl phenol condensed with about 9.5 moles of EOper mole of nonyl phenol, dinonyl phenol condensed with about 12 molesof EO per mole of dinonyl phenol, dinonyl phenol condensed with about 15moles of EO per mole of phenol and di-isoctylphenol condensed with about15 moles of EO per mole of phenol. Commercially available nonionicsurfactants of this type include Igepal CO-630 (nonyl phenol ethoxylate)marketed by GAF Corporation.

Condensates of 2 to 30 moles of ethylene oxide with sorbitan mono- andtri-C₁₀ -C₂₀ alkanoic acid esters having a HLB of 8 to 15 also may beemployed as the nonionic detergent ingredient in the described shampoo.These surfactants are well known and are available from ImperialChemical Industries under the Tween trade name. Suitable surfactantsinclude polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4)sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate andpolyoxyethylene (20) sorbitan tristearate.

The preferred long chain unsaturated fatty acids such as tall oil fattyacid of the instant invention have about 8 to about 24 carbon atoms,more preferably about 10 to about 20 carbon atoms. A preferredunsaturated fatty acid mixture is a refined tall oil fatty acid. Atypical tall oil fatty acid contains a mixture of a mono unsaturatedC₁₆₋₁₈ fatty acid; a C₁₆₋₁₈ diene unsaturated fatty acid; a C₁₆₋₁₈triene unsaturated fatty acid; and a C₁₆₋₁₈ saturated fatty acid. Otherunsaturated fatty acids that are usable in the instant compositions areunsaturated vegetable oil fatty acids, including soy, peanut, corn,cottonseed, linseed and refined oleic fatty acids, and fatty acidsconsisting predominantly of C₁₈ (average) unsaturated fatty acids andmixtures thereof.

In the compositions of this invention, the sulfosuccinate is present asthe monoalkylsuccinate which is depicted by the structure ##STR1## whereR is an aliphatic radical, preferably alkyl, of from 10 to 18 carbonatoms, especially from 12 to 16 carbon atoms, and preferably lauryl(C₁₂), and M is a cation, such as an alkali metal, e.g. sodium orpotassium, preferably sodium, ammonium, alkanolamine, e.g. ethanolamine,or magnesium. The alkyl radical may be ethoxylated with up to about 8moles, preferably up to about 6 moles, on average, e.g. 2, 3, or 4moles, of ethylene oxide, per mole of alkyl group.

The zwitterionic surfactant which are used in the instant compositionsare water soluble betaines having the general formula: ##STR2## whereinX⁻ is selected from the group consisting of CO₂ ⁻ and SO₃ ⁻ and R₁ is analkyl group having 10 to about 20 carbon atoms, preferably 12 to 16carbon atoms, or the amido radical: ##STR3## wherein R is an alkyl grouphaving about 9 to 19 carbon atoms and a is the integer 1 to 4; R₂ and R₃are each alkyl groups having 1 to 3 carbons and preferably 1 carbon; R₄is an alkylene or hydroxyalkylene group having from 1 to 4 carbon atomsand, optionally, one hydroxyl group. Typical alkyldimethyl betainesinclude decyl dimethyl betaine or 2-(N-decyl-N, N-dimethyl-ammonia)acetate, coco dimethyl betaine or 2-(N-coco N, N-dimethylammonia)acetate, myristyl dimethyl betaine, palmityl dimethyl betaine, lauryldimethyl betaine, cetyl dimethyl betaine, stearyl dimethyl betaine, etc.The amidobetaines similarly include cocoamidoethylbetaine,cocoamidopropyl betaine and the like. A preferred betaine is coco (C₈-C₁₈) amidopropyl dimethyl betaine. Two preferred betaine surfactantsare Rewoteric AMB 13 and Golmschmidt Betaine L7.

The sultaine used in the instant composition can be depicted by theformula: ##STR4## wherein R₁ is a saturated or unsaturated alkyl grouphaving about 6 to about 24 carbon atoms, R₂ is a methyl or ethyl group,R₃ is a methyl or ethyl group, n is about 1 to about 6, and M⁺ is analkali metal cation. The most preferred hydroxysultaine is a potassiumsalt of cocoamidopropyl hydroxysultaine.

The amine oxides used in the instant composition are semi-polar nonionicsurfactants which comprise compounds and mixtures of compounds havingthe formula ##STR5## wherein R₅ is an alkyl,2-hydroxyalkyl,3-hydroxyalkyl, or 3-alkoxy-2-hydroxypropyl radical in which the alkyland alkoxy, respectively, contain from 8 to 18 carbon atoms, R₆ and R₇are each methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl,2-hydroxypropyl, or 3-hydroxypropyl, and n is from 0 to 10. Particularlypreferred are amine oxides of the formula: ##STR6## wherein R₈ is aC₁₂₋₁₆ alkyl group or amido radical: ##STR7## wherein R₁₁ is an alkylgroup having about 9 to 19 carbon atoms and a is an integer 1 to 4 andR₉ and R₁₀ are methyl or ethyl. The above ethylene oxide condensates,amides, and amine oxides are more fully described in U.S. Pat. No.4,316,824 which is hereby incorporated herein by reference.

The water insoluble saturated or unsaturated organic compounds used inthe instant compositions contain 4 to 30 carbon atoms and up to 4different or identical functional groups. Examples of acceptable waterinsoluble saturated or unsaturated organic compound include (but are notlimited to) water insoluble hydrocarbons containing 0 to 4 different oridentical functional groups, water insoluble aromatic hydrocarbonscontaining 0 to 4 different or identical functional groups, waterinsoluble heterocyclic compounds containing 0 to 4 different oridentical functional groups, water insoluble ethers containing 0 to 3different or identical functional groups, water insoluble alcoholscontaining 0 to 3 different or identical functional groups, waterinsoluble amines containing 0 to 3 different or identical functionalgroups, water insoluble esters containing 0 to 3 different or identicalfunctional groups, water insoluble carboxylic acids containing 0 to 3different or identical functional groups, water insoluble amidescontaining 0 to 3 different or identical functional groups, waterinsoluble nitriles containing 0 to 3 different or identical functionalgroup, water insoluble aldehydes containing 0 to 3 different oridentical functional groups, water insoluble ketones containing 0 to 3different or identical functional groups, water insoluble phenolscontaining 0 to 3 different or identical functional groups, waterinsoluble nitro compounds containing 0 to 3 different or identicalfunctional groups, water insoluble halogens containing 0 to 3 differentor identical functional groups, water insoluble sulfates or sulfonatescontaining 0 to 3 different or identical functional groups, limonene,dipentene, terpineol, essential oils, perfumes, water insoluble organiccompounds containing up to 4 different or identical functional groupssuch as an alkyl cyclohexane having both three hydroxys and one estergroup and mixture thereof.

Typical heterocyclic compounds are 2,5 -dimethylhydrofuran,2-methyl-1,3-dioxolane, 2-ethyl 2-methyl 1,3 dioxolane, 3-ethyl 4-propyltetrahydropyran, 3-morpholino-1,2-propanediol and N-isopropyl morpholineA typical amine is alphamethyl benzyldimethylamine. Typical halogens are4-bromotoluene, butyl chloroform and methyl perchloropropane. Typicalhydrocarbons are 1,3-dimethylcyclohexane, cyclohexyl-1 decane, methyl-3cyclohexyl-9 nonane, methyl-3 cyclohexyl-6 nonane, dimethylcycloheptane, trimethyl cyclopentane, ethyl-2 isopropyl-4 cyclohexane.Typical aromatic hydrocarbons are bromotoluene, diethyl benzene,cyclohexyl bromoxylene, ethyl-3 pentyl-4 toluene, tetrahydronaphthalene,nitrobenzene and methyl naphthalene. Typical water insoluble esters arebenzyl acetate, dicyclopentadienylacetate, isononyl acetate, isobornylacetate, isobutyl isobutyrate and, alipathic esters having the formulaof: ##STR8## wherein R₁₂, R₁₄ and R₁₅ are C₂ to C₈ alkyl groups, morepreferably C₃ to C₇ alkyl groups and R₁₃ is a C₃ to C₈ alkyl group, morepreferably C₄ to C₇ alkyl group and n is a number from 3 to 8, morepreferably 4 to 7.

Typical water insoluble ethers are di(alphamethyl benzyl) ether anddiphenyl ether. Typical alcohols are phenoxyethanol and3-morpholino-1,2-propanediol. Typical water insoluble nitro derivativesare nitro butane and nitrobenzene.

Suitable essential oils which can be used in the instant compositionsare selected from the group consisting of: Anethole 20/21 natural,Aniseed oil china star, Aniseed oil globe brand, Balsam (Peru), Basiloil (India), Black pepper oil, Black pepper oleoresin 40/20, Bois deRose (Brazil) FOB, Borneol Flakes (China), Camphor oil, White, Camphorpowder synthetic technical, Cananga oil (Java), Cardamom oil, Cassia oil(China), Cedarwood oil (China) BP, Cinnamon bark oil, Cinnamon leaf oil,Citronella oil, Clove bud oil, Clove leaf, Coriander (Russia), Coumarin69° C. (China), Cyclamen Aldehyde, Diphenyl oxide, Ethyl vanilin,Eucalyptol, Eucalyptus oil, Eucalyptus citriodora, Fennel oil, Geraniumoil, Ginger oil, Ginger oleoresin (India), White grapefruit oil,Guaiacwood oil, Gurjun balsam, Heliotropin, Isobornyl acetate,Isolongifolene, Juniper berry oil, L-methyl acetate, Lavender oil, Lemonoil, Lemongrass oil, Lime oil distilled, Litsea Cubeba oil, Longifolene,Menthol crystals, Methyl cedryl ketone, Methyl chavicol, Methylsalicylate, Musk ambrette, Musk ketone, Musk xylol, Nutmeg oil, Orangeoil, Patchouli oil, Peppermint oil, Phenyl ethyl alcohol, Pimento berryoil, Pimento leaf oil, Rosalin, Sandalwood oil, Sandenol, Sage oil,Clary sage, Sassafras oil, Spearmint oil, Spike lavender, Tagetes, Teatree oil, Vanilin, Vetyver oil (Java), Wintergreen, Allocimene,Arbanex™, Arbanol®, Bergamot oils, Camphene, Alpha-Campholenic aldehyde,I-Carvone, Cineoles, Citral, Citronellol Terpenes, Alpha-Citronellol,Citronellyl Acetate, Citronellyl Nitrile, Para-Cymene, Dihydroanethole,Dihydrocarveol, d-Dihydrocarvone, Dihydrolinalool, Dihydromyrcene,Dihydromyrcenol, Dihydromyrcenyl Acetate, Dihydroterpineol,Dimethyloctanal, Dimethyloctanol, Dimethyloctanyl Acetate, Estragole,Ethyl-2 Methylbutyrate, Fenchol, Fernlol™, Florilys™, Geraniol, GeranylAcetate, Geranyl Nitrile, Glidmint™ Mint oils, Glidox™, Grapefruit oils,trans-2-Hexenal, trans-2-Hexenol, cis-3-Hexenyl Isovalerate,cis-3-Hexanyl-2-methylbutyrate, Hexyl Isovalerate,Hexyl-2-methylbutyrate, Hydroxycitronellal, Ionone, IsobornylMethylether, Linalool, Linalool Oxide, Linalyl Acetate, MenthaneHydroperoxide, I-Methyl Acetate, Methyl Hexyl Ether,Methyl-2-methylbutyrate, 2-Methylbutyl Isovalerate, Myrcene, Nerol,Neryl Acetate, 3-Octanol, 3-Octyl Acetate, PhenylEthyl-2-methylbutyrate, Petitgrain oil, cis-Pinane, PinaneHydroperoxide, Pinanol, Pine Ester, Pine Needle oils, Pine oil,alpha-Pinene, beta-Pinene, alpha-Pinene Oxide, Plinol, Plinyl Acetate,Pseudo Ionone, Rhodinol, Rhodinyl Acetate, Spice oils, alpha-Terpinene,gamma-Terpinene, Terpinene-4-OL, Terpineol, Terpinolene, TerpinylAcetate, Tetrahydrolinalool, Tetrahydrolinalyl Acetate,Tetrahydromyrcenol, Tetralol®, Tomato oils, Vitalizair, Zestoral™.

The major class of compounds found to provide highly suitablecosurfactants for the instant cleaning compositions over temperatureranges extending from 5° C. to 43° C. for instance are water-solublepolyethylene glycols having a molecular weight of 150 to 1000,polypropylene glycol of the formula HO(CH₃ CHCH₂ O)_(n) H wherein n is anumber from 2 to 18, mixtures of polyethylene glycol and polypropyleneglycol (Synalox) and mono and di C₁ -C₆ alkyl ethers and esters ofethylene glycol and propylene glycol having the structural formulasR(X)_(n) OH, R₁ (X)_(n) OH, R(X)_(n) OR, R₁ (X)_(n) OR₁ and R1(X)nORwherein R is C₁ -C₆ alkyl group, R₁ is C₂ -C₄ acyl group, X is (OCH₂CH₂) or (OCH₂ (CH₃)CH) and n is a number from 1 to 4, diethylene glycol,triethylene glycol, an alkyl lactate, wherein the alkyl group has 1 to 6carbon atoms, 1 methoxy-2-propanol, 1 methoxy-3-propanol, and 1 methoxy2-, 3- or 4-butanol.

Representative members of the polypropylene glycol include dipropyleneglycol and polypropylene glycol having a molecular weight of 150 to1000, e.g., polypropylene glycol 400. Other satisfactory glycol ethersare ethylene glycol monobutyl ether (butyl cellosolve), diethyleneglycol monobutyl ether (butyl carbitol), triethylene glycol monobutylether, mono, di, tri propylene glycol monobutyl ether, tetraethyleneglycol monobutyl ether, mono, di, tripropylene glycol monomethyl ether,propylene glycol monomethyl ether, ethylene glycol monohexyl ether,diethylene glycol monohexyl ether, propylene glycol tertiary butylether, ethylene glycol monoethyl ether, ethylene glycol monomethylether, ethylene glycol monopropyl ether, ethylene glycol monopentylether, diethylene glycol monomethyl ether, diethylene glycol monoethylether, diethylene glycol monopropyl ether, diethylene glycol monopentylether, triethylene glycol monomethyl ether, triethylene glycol monoethylether, triethylene glycol monopropyl ether, triethylene glycolmonopentyl ether, triethylene glycol monohexyl ether, mono, di,tripropylene glycol monoethyl ether, mono, di tripropylene glycolmonopropyl ether, mono, di, tripropylene glycol monopentyl ether, mono,di, tripropylene glycol monohexyl ether, mono, di, tributylene glycolmono methyl ether, mono, di, tributylene glycol monoethyl ether, mono,di, tributylene glycol monopropyl ether, mono, di, tributylene glycolmonobutyl ether, mono, di, tributylene glycol monopentyl ether and mono,di, tributylene glycol monohexyl ether, ethylene glycol monoacetate anddipropylene glycol propionate.

The low molecular weight amphiphile of the instant composition is amolecule composed of at least two parts which is capable of bonding withthe polar solvent and the non-polar solvent. Increasing the molecularweight of the low molecular weight amphiphile increases its water/oilcoupling ability which means less low molecular weight amphiphile isneeded to couple the polar solvent and the non-polar solvent or weaklypolar solvent. At least one part is essentially hydrophobic, with aHansen partial polar and hydrogen bonding solubility parameters lessthan 5 (MPa)^(1/2). At least one part is essentially water soluble, withHansen partial hydrogen bonding solubility parameter equal or greaterthan 10 (MPa)^(1/2).

To identify the hydrophilic and hydrophobic parts, the low molecularweight amphiphilic molecule (amphiphile) must be cut according to thefollowing rules: The hydrophobic parts should not contain any nitrogenor oxygen atoms; the hydrophilic parts generally contain thehetero-atoms including the carbon atoms directly attached to an oxygenor nitrogen atom.

    ______________________________________                                        Group            MW     d        p    H                                       ______________________________________                                        --CH.sub.2 --OH  31     15.5     16.1 25.4                                      --CH.sub.2 --NH.sub.2                 30    13.8     9.3    16.7                                                   --CO--NH.sub.2                                                                   44    13      14.1    13.4                                                 --CH.sub.2 --NH--CO--NH.sub.2                                                73    13.7    11.4    13.6                --CH.sub.2 --EO--OH                75    14.9     3.1    17.5                 --CH.sub.2 --EO.sub.2 --OH       119    14.8     2.6    14.8                  --CH.sub.2 --EO.sub.3 --OH       163    14.7     2.1    13.3                  --CH.sub.2 --EO.sub.4 --OH       207    14.7     1.9    12.4                  --COO--CH.sub.3                        59    13.7     8.3     8                                                    --CO--CH.sub.3                                                                   43    16.5    17.9     6.8                                                 --C.sub.3 H.sub.7                                                                 43    13.7     0       0                                                  --C.sub.4 H.sub.9                                                                 57    14.1     0       0                                                  --C.sub.10 H.sub.21                                                              141    15.8     0                   ______________________________________                                                                              0                                   

This table shows the solubility parameters for different groups. Thefirst series can be used as the hydrophilic part of an amphiphilemolecule, as the hydrogen bonding solubility parameter is always greaterthan 10. The last group can be used as the hydrophobic part of anamphiphile, as their polar and hydrogen bonding solubility parametersare below 1. The group in the middle (esters and ketones) cannot be usedas a significant contribution to an amphiphile molecule. It isnoteworthy that amphiphiles can contain ketone or ester functions, butthese functions do not contribute directly to the amphiphileperformance. _(d) is the Hansen dispersion solubility parameter asmeasured at room temperature; _(p) is the Hansen polar solubilityparameter as measured at room temperature; _(H) is the Hansen hydrogenbonding solubility parameter as measured at room temperature. Inparticular preferred low molecular weight amphiphiles, which are presentat a concentration of about 5 to about 60 wt %, more preferably about 15to about 40 wt %, are selected from the group consisting essentially ofpolyoxyethylene derivatives having the formula: ##STR9## wherein xand/or y is 1 to 6, more preferably 1 to 6, polyols having 4 to 8 carbonatoms, polyamines having 5 to 7 carbon atoms, polyamides having 5 to 7carbon atoms, alkanols having 2 to 4 carbon atoms and alkylene glycolalkyl ethers having the formula: ##STR10## wherein R" is an alkylenegroup having about 1 to about 8 carbon atoms and x is 0 to 2 and y isabout 1 to about 5. The molecular weight of the low molecular weightamphiphile is about 76 to about 300, more preferably about 100 to about250. Especially preferred low molecular weight amphiphiles are propyleneglycol n-butyl ether, tripropylene glycol n-butyl ether, propyleneglycol t-butyl ether, propylene glycol methyl ether, hexanediol,diethylene glycol monobutyl ether, triethylene glycol monohexyl etherand tetraethylene glycol monohexylether and mixtures thereof such aspropylene glycol n-butyl ether and propylene glycol methyl ether in aratio of about 2:1 to about 1.5:1.

The instant compositions contain at least one solubilizing agent whichcan be sodium xylene sulfonate, sodium cumene sulfonate, a C₂₋₃ mono ordihydroxy alkanols such as ethanol, isopropanol and propylene glycol andmixtures thereof. The solubilizing agents are included in order tocontrol low temperature cloud clear properties. Urea can be optionallyemployed in the instant composition as a supplemental solubilizing agentat a concentration of 0 to about 10 wt. %, more preferably about 0.5 wt.% to about 8 wt. %.

The instant composition can contain a C₁₂₋₁₄ alkyl monoalkanol amidesuch as lauryl monoalkanol amide and/or a C₁₂₋₁₄ alkyl dialkanol amidesuch as lauryl diethanol amide or cocodiethanol amide.

The water is present at a concentration of 40 wt. % to 90 wt. %.

In addition to the previously mentioned essential and optionalconstituents of the light duty liquid detergent, one may also employnormal and conventional adjuvants, provided they do not adversely affectthe properties of the detergent. Thus, there may be used variouscoloring agents and perfumes; ultraviolet light absorbers such as theUvinuls, which are products of GAF Corporation; sequestering agents suchas ethylene diamine tetraacetates; magnesium sulfate heptahydrate; pHmodifiers; etc. The proportion of such adjuvant materials, in total willnormally not exceed 15% by weight of the detergent composition, and thepercentages of most of such individual components will be a maximum of5% by weight and preferably less than 2% by weight. Sodium formate orformalin can be included in the formula as a perservative at aconcentration of 0.1 to 4.0 wt. %. Sodium bisulfite can be used as acolor stabilizer at a concentration of 0.01 to 0.2 wt. %.

The present light duty liquid detergents such as dishwashing liquids arereadily made by simple mixing methods from readily available componentswhich, on storage, do not adversely affect the entire composition.Solubilizing agent such as ethanol, sodium chloride and/or sodium xyleneor sodium xylene sulfonate are used to assist in solubilizing thesurfactants. The viscosity of the light duty liquid compositiondesirably will be at least 100 centipoises (cps) at room temperature,but may be up to 4,000 centipoises as measured with a BrookfieldViscometer at 25° C. using a number 21 spindle rotating at 20 rpm with asmall sample adapter.

The following examples illustrate liquid cleaning compositions of thedescribed invention. Unless otherwise specified, all percentages are byweight. The exemplified compositions are illustrative only and do nolimit the scope of the invention. Unless otherwise specified, theproportions in the examples and elsewhere in the specification are byweight.

The compositions of Examples I to III were made by mixing at 25° C. bysimple stirring all the ingredients of each formula except for theisopentane until a homogeneous solution was formed. Then 90 wt. % of themixed formula and 10 wt. % of isopentane were chilled in separate icebaths and added together into a chilled beaker and stirred at 40° F. to45° F. for about one minute until the uniform solutions as representedin the listed formulas for Examples I to IV were obtained. The formulaslisted in Examples I to IV represent the final mixed formulas in wt. %which contain the isopentane. The chilled mixed formulas of Examples Ito IV was added to the open chamber of a Gaum Inc. laboratory bench topfiller. The top of the filler is screwed on manually, and the fillingstem is placed into the valve of the Exxel package (device of U.S. Pat.No. 4,964,540) or CCL container/MonoBloc. A compressed air driven pistonforces the liquid in the filler chamber into the Exxel package or CCLcontainer/MonoBloc. When filled, the Exxel package (or CCLcontainer/MonoBloc) is removed from the filling stem. The Exxel valveassembly holds the liquid in the package (or bulb) until an actuator isapplied and depressed.

The CCL container/MonoBloc is an ABS laminated pouch. The pouch iswelded to a standard 1 inch aerosol valve. The laminated pouch and valveis inserted into an aluminum can. Compressed air or nitrogen is injectedunder the aerosol valve, then crimped. The compressed air or nitrogensurrounds the product filled pouch. When the actuator is depressed, theair exerts pressure on the pouch, providing the force required todischarge the product. All the air remains in the can, and is notreleased into the atmosphere.

After each filling operation, the Gaum filler was dis-assembled,cleaned, rinsed with cold tap water, dried, and re-assembled. The pistonwas lowered to its bottom position with vacuum. The open chamber wasthen ready to receive product/isopentane mixture for another fillingoperation.

EXAMPLE I

The following post foaming light duty liquid cleaning compositions inwt. % were made by the previously defined procedure:

    ______________________________________                                                    A     B         C       D                                         ______________________________________                                        NaLAS         2.7               24.04 5.54                                      MgLAS                 8.12                   5.54                             NH4 AEOS 1.3EO       10.66           8      17.19                             Na AEOS 1.3EO                13.23                                            CAP Betaine                   3.97                                            CAP Amino Oxide       5.7                                                     APG 625               9       3.97   1.50   11.07                             LMMEA                         2.65   2.22    1.98                             Neodol 1-9                13.23                                               Fragrance            0.36     0.34   0.40    0.40                             Salts and solubilizer  3.5    1.21   2.55    1.28                             Isopentane            10      10      10      10                              Water                Balance  Balance  Balance  Balance                     ______________________________________                                    

The filled PET bulbs for the Formulas of Examples I to IV weremaintained in a lab at room temperature. After 24 hours the filled Exxelpackages were used for spray and post foaming tests. An actuator wasapplied, and a clean dish plate was used as the test surface. Productwas sprayed on the dish surface and it was observed whether the sprayedliquid developed into a foam (post foaming) within 10 seconds and foamedto a minimum height of 0.5 cm. Experiments indicated that products withviscosity greater than 400 cps could not be sprayed through the Exxelpackage. High viscosity products would only ooze through the valve as agel. Viscosities were measured at 25° C. using a programmable BrookfieldDV2+ viscometer with small sample adapter.

EXAMPLE II

The following post foaming superwetting cleaning compositions in wt. %was made by the previously defined procedure:

    ______________________________________                                                      E                                                               ______________________________________                                        Neodol 91-5     3.87                                                            D-limonene         3.06                                                       C4 Alcohol 2EO     7.47                                                       Perfume            0.9                                                        Water            Balance                                                      Post Foaming        yes                                                     ______________________________________                                    

EXAMPLE III

The following post foam microemulsion cleaning compositions in wt. %were made by the previously defined procedure:

    ______________________________________                                                    G        H       I                                                ______________________________________                                        NaLAS                    7.2     7.2                                            NH AEOS 2EO                       0.9    0.9                                  CAP Betaine                       0.9    0.9                                  Dioctyl sulfosuccinate    0.59                                                Neodol 91-2.5             2.22                                                Neodol 91-5               8.89                                                D-limonene                       3.6                                          Isopar H                  4.5                                                 Dibutyl adipate                           3.6                                 Isopentane                 10    10      10                                   TPnB                      6.3                                                 C6 alcohol 3EO                   10      10                                   Fragrance                 0.45                                                Post foaming              yes    yes     yes                                  Water                   Balance  Balance  Balance                           ______________________________________                                    

What is claimed:
 1. A post foaming light duty liquid cleaningcomposition comprising approximately by weight:(a) 8% to 39% of at leastone sulfonate surfactant selected from the group consisting of sodium ormagnesium salt of a linear C₈ -C₁₈ alkyl benzene sulfonate and sodiummagnesium salt of a C₈ -C₁₈ paraffin sulfonate and mixtures thereof; (b)2% to 24% of at least one ethoxylated alkyl ether sulfate selected fromthe group consisting of sodium ethoxylated C₈ -C₁₈ alkyl ether sulfateammonium ethoxylated C₈ -C₁₈ alkyl ether sulfate and sodium ethoxylatedC₈ -C₁₈ alkyl ether sulfate and mixtures thereof; (c) 0.9 to 10% of asurfactant selected from the group consisting of betaine surfactants andamine oxide surfactants and mixtures thereof; (d) 1% to 16% of an alkylpolyglucoside; (e) 1.98 to 4% of a mono- or di-alkanol amide; (f) 10 to20% of an ethoxylated nonionic surfactant; (g) 0.45 to 0.6% of afragrance; (h) 7% to 14% of isopentane; and (i) 60% to 80% of water.